Leonardo DiCaprio picked up his sixth lead actor Oscar nomination Thursday morning for carrying the American masterpiece “One Battle After Another” as the overwhelmed single dad and flustered revolutionary Bob Ferguson. Ten years after he won best actor for “The Revenant,” it’s a statistic that puts him in a rarefied group that includes Daniel Day-Lewis. Including his supporting nomination for “What’s Eating Gilbert Grape,” he’s now among a group of only eight actors, male or female, to have